Base | Representation |
---|---|
bin | 1100110101111… |
… | …11111100110101 |
3 | 21111201210211201 |
4 | 12122333330311 |
5 | 210040202411 |
6 | 14405132501 |
7 | 2445532435 |
oct | 632777465 |
9 | 244653751 |
10 | 107740981 |
11 | 558a9437 |
12 | 300ba131 |
13 | 1942407a |
14 | 104482c5 |
15 | 96d33c1 |
hex | 66bff35 |
107740981 has 2 divisors, whose sum is σ = 107740982. Its totient is φ = 107740980.
The previous prime is 107740979. The next prime is 107741041. The reversal of 107740981 is 189047701.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 70408881 + 37332100 = 8391^2 + 6110^2 .
It is a cyclic number.
It is not a de Polignac number, because 107740981 - 21 = 107740979 is a prime.
It is a super-2 number, since 2×1077409812 = 23216237973684722, which contains 22 as substring.
Together with 107740979, it forms a pair of twin primes.
It is a self number, because there is not a number n which added to its sum of digits gives 107740981.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (107740921) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53870490 + 53870491.
It is an arithmetic number, because the mean of its divisors is an integer number (53870491).
Almost surely, 2107740981 is an apocalyptic number.
It is an amenable number.
107740981 is a deficient number, since it is larger than the sum of its proper divisors (1).
107740981 is an equidigital number, since it uses as much as digits as its factorization.
107740981 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 14112, while the sum is 37.
The square root of 107740981 is about 10379.8353069786. The cubic root of 107740981 is about 475.8393006130.
The spelling of 107740981 in words is "one hundred seven million, seven hundred forty thousand, nine hundred eighty-one".
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